Thermoplastic elastomer specialist Kraiburg TPE now offers products designed specifically for drinking water systems. The company’s DW series TPEs have been developed to comply with stringent drinking European water standards, for instance WRAS in the UK, ACS in France, and DVGW, W270 and KTW in Germany. The products are cited as having no effect on the taste or smell of drinking water, and as preventing the deposition of biofilms. The materials can be processed by either injection moulding or extrusion. Kraiburg’s Europe director Oliver Zinter says: “Thanks to their excellent viscosity, DW series TPEs allow for cost-efficient and precise injection moulding and retain their elasticity over time. They maintain their compliance with drinking water standards even when coloured. With these new TPEs there are therefore virtually no restrictions when it comes to the design, shape and colour of the end product. “TPEs are more expensive than other materials for these applications, but the DW series will be popular because of their advantages. They are easier to process than rubber, with shorter cycle times; they are more easily coloured and can be manufactured into more complex shapes.” Kraiburg cites a smooth surface finish, repellent to limestone and dirt. This should also suit the materials to plumbing and sanitary installations, offering manufacturers of seals, shower heads and other fittings “real added value”, the company says.